Central heating and DHW pump controller SALUS NPC2

Intelligent control of central heating and DHW pumps with SALUS NPC2

The SALUS NPC2 controller is a reliable solution for efficient management of circulating pumps in central heating and domestic hot water systems. The device automates the operation of the central heating pump, starting it only after reaching the set temperature, which translates into energy savings and user comfort. Additionally, the controller efficiently manages the DHW pump, responding to the temperature difference between the boiler and the tank, ensuring access to hot water when needed. Wall mounting facilitates integration with the existing installation, and the intuitive operation makes the controller user-friendly for both professionals and end-users.

Functionality and benefits

The NPC2 controller offers a range of functions that improve the efficiency and convenience of the heating system:

• Optimization of central heating pump operation: Starting the pump only after reaching the set temperature minimizes energy losses and reduces operating costs.
• Intelligent control of the DHW pump: The algorithm taking into account hysteresis (5-30°C) ensures efficient heating of domestic hot water without unnecessary energy consumption – the pump starts only when the temperature difference between the boiler and the tank is significant.
• Freeze protection: This function protects the installation from damage caused by low temperatures, especially during periods of non-use of the property.
• Pump seizure protection: Regular pump starting prevents it from seizing and extends its life – useful especially in rarely used systems.
• Manual mode: Allows you to take control of the pump operation in emergency situations or during installation servicing.
• DHW priority: Ensures priority heating of domestic hot water in the event of simultaneous demand for central heating and domestic hot water – comfort first!
• Summer mode: Allows you to turn off the central heating pump while maintaining the operation of the DHW pump, which is useful in the summer when only hot water heating is required.

Technical specifications and application

The NPC2 controller is designed for durability and reliability – its solid construction and high-quality components guarantee long-term operation even in harsh operating conditions. The device operates at 230V AC 50Hz and has an output load of up to 6A for both pumps (central heating and DHW). The temperature adjustment range of the medium is from 5 to 80°C for central heating, and from 20 to 80°C for DHW, allowing precise adjustment of operating parameters to individual user needs and the specifics of the heating installation. The lengths of the sensors are 1.2 m for central heating and 3 m for DHW, respectively, ensuring accurate temperature measurement at key points in the heating system. The controller complies with EMC 2014/30/EU and RoHS 2011/65/EU standards, confirming its safety and compliance with applicable regulations.